Tuesday marks one week since the mass shooting at the Allina Health clinic in Buffalo.
Gregory Ulrich has been charged with murder, attempted murder and possession of explosives.
He has also been charged with four counts of attempted murder.
The 37-year-old was one of five people shot when a gunman entered the Buffalo clinic.
The 67-year-old is facing charges for Tuesday's mass shooting, which left one dead and four injured.
Three others are in a critical but stable condition.
The 67-year-old alleged gunman has been taken into custody.
Police say he has lived in the area for a long time, and is known to police.
The incident was reported just before 11 a.m.